JP2549759Y2 - Panel shutter device - Google Patents

Description

[Detailed description of the invention] [Industrial applications]

The present invention relates to a panel shutter device that connects a plurality of panels each including a plurality of slats and that opens and closes a shutter opening / closing opening of a building.

[Prior art]

FIG. 12 is a schematic front view showing a conventional panel shutter device, and FIG. 13 is a cross-sectional view showing an enlarged part of the panel storage box of FIG. First, in FIG. 12, reference numeral 1 denotes a pair of left and right guide rails arranged upright on both sides of a shutter opening / closing opening of a building, and these guide rails 1 each have a vertically long opening for panel elevating guide on their opposing surfaces. It is made of a U-shaped member. A panel storage box (hereinafter referred to as a storage box) 2 is disposed above the guide rail 1. As shown in FIG. 13, a pair of left and right panel driving sprockets 3 are located in the storage box 2 above the entrance, and a front end is located near the upper part of the sprocket 3 and a rear end is gradually inclined downward. And a storage rail 4 for hanging and storing the panel. A pair of left and right chains 5 is attached to both sprockets 3.
And these chains 5 are connected to each panel 6, 7
The upper guide roller R1 for rolling on the storage rail 4 is rotatably attached to the upper both sides of the long pin P so as to be rotatably connected via a long pin P projecting therefrom. Have been. Each of the panels 6 and 7 is provided with a fitting ridge 8 in the upper end longitudinal direction and a fitting ridge 9 in the lower end longitudinal direction. 7
When the shutter is fully closed and the lowermost panel is grounded and the shutter is fully closed, the fitting ridges 8 and the fitting ridges 9 of the panels 6 and 7 are fitted to each other, and No gaps are created. However, when the panel is stored in the storage box 2, the upper fitting protrusion 8 of the lower panel 7 is fitted to the lower fitting recess 9 of the upper panel 6 that has risen to the vicinity of the sprocket 3 along the guide rail 1. If it is still fitted, it will not be possible to laterally feed the upper panel 6 along the sprocket 3 toward the storage rail 4 (panel storage direction). Therefore, in order to enable the panels 6, 7 to be traversed in the storage direction, the panels 6, 7 deployed between the two guide rails 1 are arranged.
As shown in FIG. 13, a gap L for maintaining the fitting projection 8 and the fitting recess 9 in a separated state is set between them. The panels 6 and 7 are connected to each other by the chain 5 as described above. In FIG. 13, R2 is a lower guide roller rotatably supported on both lower sides of each of the panels 6, 7, and 10 is disposed near the entrance in the storage box 2 so that the lower guide roller R2 enters and exits the panel. It is a lower panel guide for guiding in the direction. Next, the operation will be described. When the sprocket 3 in FIG. 13 is started to rotate counterclockwise in the shutter open state in which the panels 6 and 7 are stored in the storage box 2, the feed operation of the chain 5 meshed with the sprocket 3 causes The panels 6 and 7 move down sequentially along the guide rail 1. At the time of the lowering operation, when the lowermost panel 7 is not yet grounded, the fitting ridge 8 and the fitting ridge 9 between the panels 6 and 7 are not fitted with a gap L. In state. However, when the lowermost panel 7 touches the ground, the upper panel 6 descends on the lowermost panel 7 so that
The fitting ridges 8 and the fitting ridges 9 of the two fit together to seal the panels 6 and 7 with each other. In this way, all the panels 6,
In a so-called shutter fully-closed state in which 7 is extended, all the panels 6 and 7 are in a sealed state with no gap L due to the fitting of the fitting ridge 8 and the fitting ridge 9 as described above. When the sprocket 3 is started to rotate in the reverse direction from the fully closed state of the shutter, the feeding operation of the chain 5 meshed with the sprocket 3 causes the panels 6, 7 between the two guide rails 1 to be sequentially pulled up from the uppermost one. , Each panel
The fitting between the fitting ridge 8 and the fitting ridge 9 between 6 and 7 is sequentially released, and a gap L is generated between the fitting ridge 8 and the fitting ridge 9. With each panel 6 and 7 in storage box 2
It gradually rises into the inside. Then, the panels 6, 7 which have entered the storage box 2 and whose upper end has been sequentially raised between the pair of left and right sprockets 3 are arranged.
Is laterally fed to the storage rail 4 side along the circumference of the sprocket 3. By the lateral feed, the upper guide roller R of each panel 6, 7
The panels 6 and 7 that have passed the sprocket 3 to the storage rail 4 side by sequentially shifting 1 on the storage rail 4
The storage rails 4 are suspended and stored in parallel.

[Problems to be solved by the invention]

Since the conventional panel shutter device is configured as described above, the panel 6, which moves up and down between the left and right guide rails 1,
7, a gap L must be set. When the gap L is set, a finger or the like is placed between the panels 6, 7 during the panel closing operation due to the lowering of the panels 6, 7 between the two guide rails 1. There was a risk of pinching. It is conceivable to provide windows for lighting and ventilation on each of the panels 6 and 7, but in this case, the windows could not be opened and closed as needed. This invention was made in order to solve the above-mentioned problem, and made a plurality of panels vertically movable up and down between a pair of left and right guide rails so as to be vertically expandable and contractible, and for the daylighting / ventilation by the expansion and contraction operation. It is an object of the present invention to obtain a panel shutter device capable of opening and closing a window hole. Further, the present invention eliminates the need to set a gap between the panels when ascending and descending between the pair of left and right guide rails, and provides a highly reliable panel shutter device that has no risk of fingers or the like being pinched between the panels during the closing operation. The purpose is to obtain.

[Means for Solving the Problems]

The panel shutter device according to the first aspect of the present invention includes a pair of left and right guide rails arranged upright on both sides of a shutter opening / closing opening, a plurality of panels that move up and down between the guide rails, and A pair of left and right chains supported on both sides, a pair of left and right panel driving sprockets meshing with the chain, and a storage rail that rises between the guide rails and supports the panels passing through the panel driving sprockets in parallel. In the panel shutter device provided with the above, each of the panels has a fitting convex portion on one of upper and lower ends and a fitting concave portion on the other, and a plurality of slats which are adjacent to each other in the up-down direction are set as one set. The fitting projections and the fitting recesses are vertically movably fitted between the slats to connect the slats up and down so as to be able to expand and contract. Only the both sides of the slat are supported by the chain, and the abdomen of the fitting projection of each slat is provided with a window for lighting and ventilation, and this window is opened and closed by mutual expansion and contraction of the slats. is there. In the panel shutter device according to the present invention, a pair of left and right chains engaged with a pair of left and right panel driving sprockets protrude radially outward of the sprockets at the tooth tips of the panel driving sprockets. The panel support arms are connected, and the panel support arms rotatably support both sides of the uppermost slat of each panel. A panel shutter device according to the invention of claim 3 is provided with a slit in the longitudinal direction of the panel support arm, and slidably supports both side spindles of the uppermost slat of each panel in the slit, and the panel is composed of a pair of left and right panels. When the driving sprocket passes to the storage rail side, the both-side support shafts of the uppermost slat of the panel slide in the slit in a direction away from an approach position to the panel driving sprocket.

[Action]

The panel shutter device in the invention according to claim 1,
A set of a plurality of slats each having a fitting projection on one of the upper and lower ends and a fitting recess on the other side and each being vertically adjacent to each other is formed as one set, and the fitting projection and the fitting are interposed between these slats. A single panel is formed by fitting the recesses vertically and connecting the slats vertically up and down freely, and only the both sides of the uppermost slat in the panel are connected to a chain meshing with the panel driving sprocket. The slats of each panel can be extended by their own weight because the window holes for lighting and ventilation are provided on the abdomen of the fitting projections of the slats, and the window holes are opened in the extended state. Then, when the shutters are fully closed, the slats of each panel are shortened so that there is no gap, so that the window hole can be closed. Therefore, even when the shutter is fully closed, the other upper slats can be raised within the allowable range of expansion and contraction of the uneven fitting portion between the slats by rotating the panel driving sprocket with the lower end slat of the lowermost panel grounded. For example, the window hole can be opened while the shutter is fully closed. In the panel shutter device according to the present invention, the panel supported by a panel supporting arm projecting radially outward of the sprocket at the tip of a pair of left and right panel driving sprockets moves near the sprocket. Since the speed is faster than the moving speed of the succeeding panel, the guide rail can be moved up and down while the panels are fitted to each other, so that there is no danger of fingers or the like being pinched between the panels when the shutter is closed. . In addition, when the shutter is opened, the panel that has risen to the vicinity of the sprocket has a higher ascending speed than the subsequent panel, and the engagement between the two is released, so that the panel is smoothly and reliably laterally fed to the storage rail side. be able to. In the panel shutter device according to the third aspect of the present invention, when the panel supporting arm moves the tip of the sprocket, the support shafts on both sides of the panel move along the slits of the panel supporting arm toward or away from the sprocket. By moving, uneven fitting and uneven fitting cancellation between panels are performed more smoothly.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic front view showing a panel shutter device according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view taken along line AA of FIG. 1, and FIG. 12 is an enlarged view of the vicinity of the sprocket, and the same or corresponding parts as in FIGS. 12 and 13 are denoted by the same reference numerals, and redundant description is omitted. In FIG. 1, reference numeral 60 denotes a plurality of panels which move up and down between a pair of left and right guide rails 1 and which open and close.
Has a configuration in which a plurality of slats 61 and 62 are connected as a set, and a detailed configuration thereof will be described later. 2 and 3, a plurality of panel support arms 80 are attached to the chain 5 engaged with the pair of left and right panel driving sprockets 3 at a predetermined panel attachment interval. These panel support arms 80 have their base ends (roots) connected and fixed to the chain 3, and radially outward of the sprocket 3 from the tooth tip of the sprocket 3 in the meshing region of the sprocket 3 and the chain 5. It is protruding. In addition, each panel support arm 80 is provided with a panel support slit 81 that extends in the direction in front of and near the tooth tip of the sprocket 3 in front of the tooth tip of the sprocket 3. The support shafts 63 on both upper sides of each panel 60 are slidably inserted through the slits 81, whereby both upper sides of each panel 60 are supported by the chain 5 via the panel support arms 80. Here, the detailed configuration of each panel 60 composed of a plurality of slats 61 and 62 as described above will be described with reference to FIGS. 7 and 10. One panel 60 is composed of one upper slat 62 and a plurality of lower slats 61 sequentially connected to the lower end of the upper slat 62. These slats 62, 61 are hollow disc-shaped members. Consists of The upper ends of the slats 62 and 61 are shown in FIG.
As shown in (B), plate-shaped necks (fitting protrusions) 621 and 611 are provided integrally with each other over the entire longitudinal direction, and are provided at the upper ends of the plate-shaped necks 611 of the other slats 61 except the upper end slat 62. Has an engaging head 612 formed therein. In the lower part of each slat 62, 61, a dovetail-shaped fitting concave part 623, 613 having an open lower end face and both end faces is formed. Then, the engaging head 612 of the next lower slat 61 is vertically movably fitted into and engaged with the fitting recess 623 of the upper end slat 62, and similarly, the engaging head 612 of the lower slat 61 is mutually engaged. And the fitting recess 613 so as to be vertically movable and engaged with each other, thereby forming one upper slat 62 and a plurality of lower slats 61.
Are connected in series in a vertically movable manner to form one panel 60. 7 (B) and 7 (C) are provided on both end surfaces of the panel 60.
As shown in FIGS. 8B and 8C, a side plate 66 for connecting the slats is attached. The attachment means will be described in detail. The upper end of the side plate 66 is connected to a support shaft 63 that connects the left and right end portions of the upper end slat 62 to the pair of left and right chains 5. Engagement member connected to the opposite end
64 (FIG. 7B) and FIG. 9 (the engaging member 64 in FIG. 9).
Is not connected to the support shaft 64, but the related configuration between the engaging member 64 and the slats 61 and 62 is the same. As shown in ()), the upper end slat 62 is fitted inside the opening at both ends.
At the time of the fitting, an outward engaging claw 64a formed on the wall of the engaging member 64 is engaged from the inside with a slit-shaped engaging receiving portion 62a provided on the wall of the upper end slat 62. . Thus, the side plate 66 whose upper end is connected to the support shaft 63 on both sides of the upper end slat 62 is provided with a slit 661 for a slide guide along the longitudinal direction, and this slit 661 is provided in FIG. As shown in FIG. 9 (C) and FIG. 9, guide pins 68 such as screws projecting from both side end surfaces of the other lower slat 61 are vertically slidably fitted. That is, the same engaging members 64 as in the case of the upper slats 62 are fitted into the openings at both ends of each lower slat 61, and the engaging claws 64a of the engaging members 64 are engaged with the receiving portions of the lower slats 61. After engaging with the engaging member 61a, a guide pin 68 is attached to the engaging member 61a via a slit 661 of the side plate 66 by screwing or the like, so that the lateral displacement of each lower slat 61 is reduced by the side plate.
66 prevents it. A lower guide roller R2 having a different movement locus from the upper guide roller R1 is rotatably attached to a lower portion of the side plate 6. In this manner, a plurality of panels 60, each of which includes one upper slat 62 and a plurality of lower slats 61, form a pair of left and right chains 5 via the support shafts 63 and the panel support arms 80 on both sides. Are linked in series. In such a panel 60, the plate-like neck of the upper end slat 62
Window holes 67 for lighting and ventilation are provided in the plate-shaped neck portion 611 of the lower slat 621 and the lower slat 621, respectively, and these window holes 67 are opened and closed by the mutual vertical movement of each slat 62, 61. The up / down operation will be described later. On the other hand, as shown in FIGS. 2 and 3, the chain 5 of the panel 60 that has entered the storage box 2 from the guide rail 1 is moved toward the tip of the sprocket 3, as shown in FIGS. A chain longitudinal guideway F1 that guides in the vertical direction (longitudinal direction); and an upper guide roller R1 of the panel 60 that is disposed outside the chain longitudinal guideway F1 and is parallel to the chain longitudinal guideway F1. (A vertical direction) and a roller vertical guiding path G1. In the storage box 2, a storage rail 4 for rollingly supporting an upper guide roller R1 of a panel 60 that ascends from the guide rail 1 and passes between the pair of left and right sprockets 3 is disposed substantially horizontally. Have been. The storage rail 4 is connected to the roller longitudinal guide path G1 and is curved outside the tooth tip portion of the sprocket 3 in a direction along a meshing region between the sprocket 3 and the chain 5; A roller lateral guide path (guide groove) G3 connected to the roller curved guide path G2 and extending in the horizontal direction is formed in series. A chain pressing portion 41 for preventing the chain 5 meshed with the sprocket 3 from coming off is provided between the roller curved guide path G2 of the storage rail 4 and the tooth tip of the sprocket 3. On the side of the sprocket 3, a chain guide plate 21 whose root is fixed to a side wall (bracket) 20 of the storage box 2 is disposed. The chain guide plate 21 is connected to the chain longitudinal guide path F1 between the chain presser 41 and the chain curved guide path F2, and is connected to the chain curved guide path F2 and is parallel to the roller lateral guide path G3. Chain taxiway extending in the direction
F3 is formed in series. Therefore, the chain longitudinal taxiway F1 and the chain curved taxiway F2
The chain guideway F3 and the chain guideway F3 constitute a series of chain guideways F, and the roller longitudinal guideway G1, the roller curved guideway G2, and the roller lateral guideway G3 constitute a roller guideway G. In the above, chain longitudinal taxiway F1 and roller longitudinal taxiway
Assuming that the interval between G1 and H1, the interval between the chain curved guideway F2 and the roller curved guideway G2 is H2, and the interval between the chain lateral guideway F3 and the roller lateral guideway G3 are H3,
It is set so that the relational expression of H1 <H2 <H3 holds. The positional relationship between the slit 81 of the panel support arm 80 and the panel support shaft 63 based on such a relationship of H1 <H2 <H3 will be described. The panel support shaft 63 is moved in a chain during the vertical movement along the roller vertical guide path G1. 5 is held at one end of the slit 81 closest to the fifth side, the roller curved guide path G2
When moving along the roller lateral guideway G3, the chain 5 moves to a substantially intermediate portion of the slit 81.
The slit 81 is held at the other end of the slit 81 at the position farthest from the slit 81. That is, by the feed operation of the chain 5 and the panel support arm 80 by the rotation of the sprocket 3, the panel support shaft 63 is connected to the roller longitudinal guide path G1 and the roller lateral guide path G3 via the roller curved guide path G2. At this time, the panel support shaft 63 is closest to the sprocket 3 side on the roller longitudinal guideway G1 side, and
On the side of the roller lateral guide path G3, the slit 81 is moved in a direction farthest from the sprocket 3. Therefore, when the panel 60 passes between the pair of left and right sprockets 3, the peripheral speed of the sprocket 3 and the panel support shaft 63
Due to this difference speed, the panel 60 moves faster than the moving speed of the subsequent panel when passing between the sprockets 3 toward the storage rail 4 side. Below the storage rail 4 in the storage box 2, a lower panel guide 10 that is mostly parallel to the storage rail 4 is disposed. The lower panel guide 10 has inclined guide portions 10a and 23 on the side of the chain vertical guide path F1 to guide the lower guide roller R2 of the panel 60. Further, a panel posture correcting mechanism 90 is arranged near the panel entrance and exit in the storage box 2. As shown in FIGS. 2 and 6 (A) and (B), the panel posture correcting mechanism 90 has a roller support block at both sides sandwiching the front and back surfaces of the panel 60 which vertically moves along the roller vertical guide path G1. Press rollers R3, R rotatably supported on 91
It consists of 4, R5, R6. These pressing rollers R3, R4, R5,
R6 is made of a soft roller, and the pressing rollers R3 and R6 and R4 and R5 at positions sandwiching the panel 60 are arranged at intervals to press the panel 60 on both sides. The pressing rollers R3, R6 and R4, R5 have a function of guiding the vertically adjacent panels 60 in the same vertical plane direction, and the number of rollers is not specified, and the number of the rollers is not limited. Any number can be used as long as it can be moved vertically in both sides of the front and back sides. Also, pressing rollers R3, R
The location of 6 and R4, R5 may be any location as long as the location is for the vertical movement path of panel 60. FIG. 4 is a structural explanatory view showing a partial cross section of an electric shutter drive device applied to the panel shutter device according to the embodiment of the present invention. In FIG. 4, reference numeral 70 denotes, for example, a geared motor capable of reversible rotation. A drive sprocket 71 is fitted on an output shaft 73 of the switch 70, and the driven sprocket 30 is interlocked with the driven sprocket 71 via a transmission chain 72, and the driven sprocket 30
The panel driving sprocket 3 is mounted on the rotary shaft 31 of the rotary shaft 31 so as to rotate synchronously. FIG. 5 is a sectional view showing a manual shutter driving device applied to the panel shutter device according to the embodiment of the present invention.
Is replaced with a moment balancer 700. That is, the moment balancer 700 is a cylindrical manual drive shaft integrally connected to the driving sprocket 71.
74, a balancer shaft 76 that is inserted into the drive shaft 74, passes through the axis of the driving sprocket 71, and is fixed to the side wall 20 of the storage box 2, and is rotatably fitted to the balancer shaft 76 to be driven. A foil 75 integrated with a shaft 74, and a coil-shaped balance spring 77 fitted to the balancer shaft 76 and having one end connected to the balancer shaft 76 and the other end connected to the wheel 75.
And consists of This moment balancer 700 has a guide rail 1
And the load of the roller longitudinal guideway adjacent panel 60 of the non-contact state in the vertical direction along the G1 is, acts as a rotational moment M ₁ via the panel drive sprocket 3 → the driven sprocket 30 → the transmission chain 72 → driver sprocket 71 Suruga spring moment M ₂ of the rotating moment M ₁ and balance spring 77 is set so as to balance the fully closed position of the panel 60, the balance spring 77 at the time of equilibrium, a slight lifting force of the panel 60 The rotational energy in the direction in which the panel 60 is raised is stored. Next, the shutter opening / closing operation by the electric shutter driving device shown in FIGS. 2 and 4 will be described. In a shutter fully closed state in which all panels 60 are extended between a pair of left and right guide rails 1, as shown in FIG.
The upper and lower end slats 62 and the next lower slat 61 and the other lower slats 61 are in close contact with each other and the upper and lower end surfaces of the slats are tightly joined with a window hole 67 for lighting and ventilation closed. When the switch 70 is started in the shutter opening direction from such a shutter fully closed state, the rotation output is transmitted to the panel driving sprocket 3 via the driving sprocket 71 → the transmission chain 72 → the driven sprocket 30. The sprocket 3 rotates clockwise in FIG. By the rotation of the sprocket 3, each panel 60 is sequentially pulled up via the chain 5 meshed with the sprocket 3 and the panel support arm 80. Here, in each panel 60, only the upper end slat 62 is supported by the chain 5 via the panel support arm 80, and the engaging head of the lower next slat 612 is fitted in the fitting recess 623 below the upper end slat 62. The upper and lower engaging portions 612 of the lower slat 61 with respect to the fitting concave portion 613 of the lower portion of the upper slat 61 can move up and down freely even when the portion 612 is unevenly fitted so as to be vertically movable and is located between the other lower slats 61. Since the uppermost panel 60 that is first raised is first raised, the upper end slat 62 is raised, and then the other lower slat 61
Are sequentially raised. By such a gradual raising of the slats 62 and 61,
First, with the slats 62 and 61 extending to the maximum length and opening the window 67 between the slats,
60 is raised. At the same time that the top panel 60 is raised, the upper end slat 62 of the next succeeding panel 60 is raised. That is, when the uppermost panel 60 is pulled up, its lowermost slat 61 is pulled up last. However, each panel 60 has a panel interval (a mutual interval between the panel support arms 80) in a state where the respective slats 62 and 61 are maximized. ) L ₁ is set as shown in Figure No. 7 (C), in the panel spacing L _1, the engaging recess 613 of the lowermost slat 61 of the uppermost panel 60
The entire plate-shaped neck portion 621 of the upper end slat 62 of the next succeeding panel 60 is completely fitted into the lowermost slat 61 of the uppermost panel 60.
And the upper end slat 62 of the next succeeding panel 60 are joined without any gap. For this reason, the lowermost slat 61 of the uppermost panel 60 and the upper end slat 62 of the next succeeding panel 60 are simultaneously pulled up in a state where they are joined to each other, and then the next succeeding panel 60
The other lower slats 61 are sequentially raised. By raising the panel 60 in this manner, the panel 60
Rises (longitudinal movement) along the guide rail 1 and the rotor vertical guide path G1. At this time, the support shaft 63 of each panel 60
The panel 81 is held at a position closest to the chain 5 by the slit 81 of the panel support arm 80. When the panel support arm 80 of the uppermost panel 60 reaches the meshing region of the sprocket 3 and the chain 5 and starts a circular motion along the tip of the sprocket 3, the panel support arm 80 is inserted through the slit 81 of the panel support arm 80. The supported shaft 63 is guided by the roller curved guide path G2 from the upper end of the roller vertical guide path G1 and moves through the slit 81 toward the free end side of the panel support arm 80. As a result, the radius of rotation of the support shaft 63 about the axis of the sprocket 3 becomes larger than the interval H1 between the chain longitudinal guide path F1 and the roller longitudinal guide path G1, so that the rotation along the roller curved guide path G2 is performed. The moving speed of the support shaft 63 becomes faster than the peripheral speed of the sprocket 3. Due to the difference between the moving speed of the support shaft 63 and the peripheral speed of the sprocket 3, the uppermost panel 60 having the support shaft 63
Rises at a speed faster than the rising speed of the succeeding panel 60. As a result, the concave-convex fitting between the fitting concave portion 613 of the lowermost slat 61 of the uppermost panel 60 and the plate-shaped neck portion (fitting convex portion) 623 of the upper end slat 62 of the next succeeding panel 60 is released. The upper panel 60 can be traversed in the direction along the storage rail 4. In this manner, the panel 60 raised via the panel supporting arm 80 and the support shaft 63 by the feed operation of the chain 5 by the rotation of the sprocket 3 causes the upper guide roller R1 to move from the roller curved guide path G2 to the roller of the storage rail 4. By shifting to the lateral taxiway G3, the panels 60 that have sequentially passed between the pair of left and right sprockets 3 are in a parallel posture, and
It is suspended and stored. When the switch 70 is started to rotate in the reverse direction from such a panel storage state, the panel driving sprocket 3 is driven to rotate counterclockwise in FIG. 2 so that each panel 60 in the storage box 2 becomes a guide. It is fed out between the rails 1 sequentially. In this case, first, the lowermost panel 60 on the roller longitudinal guideway G1 starts to descend along the guide rail 1, and the succeeding upper panel 60 moves from the roller lateral guideway G3 of the storage rail 4 to the roller curved guideway G2. When passing between the pair of right and left sprockets 3 along the roller vertical guide path G1 side, the support shaft 63 of the succeeding upper panel 60 is slit 81 of the panel support arm 80.
From the free end side of the panel support arm 80 in a direction approaching the chain 5. As a result, the rotation radius of the support shaft 63 about the axis of the sprocket 3 gradually decreases, but before reaching the horizontal line passing through the axis of the sprocket 3, the support shaft 63
It moves faster than the peripheral speed of the sprocket 3. For this reason, the initial descending speed of the panel 60 that passes between the pair of left and right sprockets 3 toward the roller longitudinal guideway G1 and starts to descend along the roller longitudinal guideway G1 is lower than the descending speed of the preceding descending panel 60. Be faster. Thereby, the lowermost slats 61 of the succeeding descending panel 60 are opposed to the plate-shaped neck 621 of the upper end slat 62 of the preceding descending panel 60.
Of the leading lower panel 60 and the lowermost slat 61 of the succeeding descending panel 60 are joined without any gap, and the panels 60 are lowered. In the process of lowering the panel 60, the lower slats 61 other than the upper slat 62 of each panel 60 have their respective upper engaging heads 612 at the inner lower ends of the engaging recesses 613 below the upper slat 61. Each panel 60 descends with its window hole 67 opened between the lower slats 61, with its own weight lowered to the engagement position. Then, when the lowermost slat 61 touches the ground, the other upper slats 61, 62 sequentially descend on the slat 61, so that the plate-shaped neck portions 611, 621 of the slats 61, 62 are respectively fitted with the upper fitting recesses 613, 623. Into a shutter fully closed state in which the window hole 67 is closed. With the shutter fully closed, the lowermost slat 61
Other slats so that they remain grounded
If the switches 61 and 62 are raised by the opening distance of the window hole 67 by activating the switch 70, the window hole 67 can be opened with the shutter fully closed. During the shutter opening / closing drive as described above, the slats 62, 61 of the panel 60 that moves longitudinally along the roller vertical guide path G1.
Are the pressing rollers R3, R6 and R4 of the panel posture correcting mechanism 90.
R5 ensures guidance in the same vertical plane direction. For this reason, the slats 62 and 61 are reliably prevented from swinging when they are fitted into and recessed from each other. Next, the shutter opening / closing operation by the manual shutter driving device shown in FIG. 5 will be described. In the fully closed state of the shutter, rotational energy in the direction to raise the panel 60 is stored in the balance spring 77 of the moment balancer 700. Therefore, when the panel 60 in the fully closed state of the shutter is slightly lifted by an artificial operation, the balance spring By releasing the rotation energy of 77 and continuing the ascent operation of the panel 60, the panel
The shutter 60 enters the storage box 2 and is stored in the shutter open state. When closing the shutter from the shutter open state,
The lowermost slat 61 may be pulled down by a manual operation against the spring force of the balance spring 77. The other detailed operations at the time of opening and closing the shutter by the manual operation are the same as those in the case of the above-described electric shutter driving device, and the description thereof will be omitted. FIG. 11 (A) is a sectional view showing a panel shutter device according to another embodiment of the present invention, and FIG. 11 (B) is FIG. 11 (A).
11 (C) is a right side view of FIG. 11 (B). This embodiment differs from the previous embodiment in that each panel 60 also has side plates 66 fixed to both side end surfaces of each slat 61 with screws 69. That is, in this embodiment, the side plate 66 has a slit similar to the slit 661 of the previous embodiment in the longitudinal direction,
A dedicated support plate is provided, and a screw hole for fixing the slat is provided in the support plate. The panel 60 having such a configuration increases the overall strength,
Processing of each slat is simplified, and manufacturing costs can be reduced.

[Effect of the invention]

As described above, according to the invention of claim 1, a plurality of slats each having a fitting projection on one of the upper and lower ends and a fitting recess on the other and vertically adjacent to each other are provided as one set, A single panel is formed by fitting the fitting projection and the fitting recess movably up and down between these slats and connecting the slats up and down so as to be able to move up and down. Only the both sides of the slats are supported by the chain meshing with the panel drive sprocket, and windows for lighting and ventilation are provided on the abdomen of the fitting projections of each slat, so the slats of each panel extend by their own weight. The window hole can be opened by the extension operation. When the shutter is fully closed, the window holes can be closed by shortening the slats of each panel so that there is no gap. Therefore, even when the shutter is fully closed, the other upper slat can be raised within the allowable range of expansion and contraction of the uneven fitting portion between the slats by rotating the panel driving sprocket with the lower end slat of the lowermost panel grounded. This has the effect that the window hole can be opened while the shutter is fully closed. In the panel shutter device according to the present invention, the panel supported by a panel supporting arm projecting radially outward of the sprocket at the tip of a pair of left and right panel driving sprockets moves near the sprocket. Since the speed is faster than the moving speed of the succeeding panel, the guide rail can be moved up and down while the panels are fitted into and recessed with each other. Therefore, there is no danger of fingers or the like being pinched between the panels when the shutter is closed. effective. Moreover, when the shutter is opened, the panel which has risen to the vicinity of the sprocket has a higher ascending speed than the succeeding panel and the engagement between the two is released, so that the panel is smoothly and reliably laterally fed to the storage rail side. There is an effect that can be. In the panel shutter device according to the third aspect of the present invention, when the panel support arm moves the tip of the sprocket, the support shafts on both sides of the panel approach or separate from the sprocket along the slit of the panel support arm. In this case, there is an effect that the fitting of the unevenness between the panels and the release of the uneven fitting can be performed more smoothly.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing a panel shutter device according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view taken along line AA of FIG. 1, and FIG. FIG. 4 is an explanatory view showing the configuration of a partially sectioned electric shutter driving device, FIG. 5 is a sectional view showing a manual shutter opening / closing device, and FIG. 1
6 and 7 are enlarged sectional views of the panel posture correcting mechanism in FIGS. 2 and 3, FIG. 6B is an operation explanatory view of FIG. 6A, and FIG. 7 (B) is a side elevational view of FIG. 7 (A), FIG. 7 (C) is a right side view of FIG. 7 (B), and FIG. 8 (A) is a shortened state of the panel. FIG. 8 (B) is a side elevational view of FIG. 8 (A), FIG. 8 (C) is a right side view of FIG. 8 (B), and FIG.
The figure is an enlarged sectional view taken along the line II of FIG. 7 (B), FIG. 10 (A) is a side view showing a cross section of the upper end slat of the panel, and FIG. FIG. 11 (A) is a sectional view showing a panel shutter device according to another embodiment of the present invention, and FIG. 11 (B) is a side view of FIG. 11 (A). 11 (C) is a right side view of FIG. 11 (B), FIG. 12 is a schematic front view showing a conventional panel shutter device, and FIG. 13 is an enlarged view of the panel storage box. FIG. DESCRIPTION OF SYMBOLS 1 ... Guide rail, 2 ... Storage box, 3 ... Panel drive sprocket, 4 ... Storage rail, 5 ... Chain, 60 ... Panel, 61, 62 ... Slat, 63 ... Support shaft, 80 …… Panel support arm, 81 …… Slit, 67 ……
Window holes, 611, 621: fitting projections, 613, 623: fitting recesses.

Claims (3)

(57) [Scope of request for utility model registration] 1. A pair of left and right guide rails erected on both sides of a shutter opening / closing opening, a plurality of panels for elevating and closing between the guide rails, and a pair of left and right chains supporting the panels on both sides thereof. A panel shutter device comprising: a pair of left and right panel driving sprockets in which the chain meshes; and a storage rail that rises between the guide rails and supports the panels passing through the panel driving sprockets in parallel. Each of the panels has a fitting convex portion on one of upper and lower ends and a fitting concave portion on the other, and a plurality of slats each of which are vertically adjacent to each other are formed as one set, and the fitting convex portion is formed between these slats. Part and the fitting recess are vertically movably fitted to connect the slats to each other so as to be vertically expandable and contractable, and only the uppermost slat supports both sides to the chain. Is allowed in the abdomen of the fitting convex portion of each slat a window hole for lighting and ventilation, panel shutter device being characterized in that so as to open and close the window opening in the expansion and contraction operation of the slats each other. 2. A pair of left and right chains for meshing with a pair of left and right panel driving sprockets is connected to a panel support arm projecting radially outward of the sprocket at a tooth tip of the panel driving sprocket. 2. The panel shutter device according to claim 1, wherein both sides of the uppermost slat of each panel are rotatably supported by the panel support arm. 3. A panel support arm is provided with a slit extending in a longitudinal direction thereof, and both side supports of the uppermost slat of each panel are slidably supported by the slit, and the panel includes a pair of left and right panel driving sprockets. 3. The device according to claim 2, wherein, when passing through the storage rail, the both-side support shafts of the uppermost slat of the panel slide in the slit in a direction away from an approach position to the panel driving sprocket. Panel shutter device.